Perhaps you should try some spelling variations:
petriuov » petrov (Expand Search), peteriuov (Expand Search), petroiuov (Expand Search), periuov (Expand Search)
peri » per (Expand Search)
petri » peteri (Expand Search), petroi (Expand Search), peri (Expand Search)
petru » peteru (Expand Search), petrou (Expand Search), peru (Expand Search)
petriu » peteriu (Expand Search), petroiu (Expand Search), periu (Expand Search)
petriiu » peteriiu (Expand Search), petroiiu (Expand Search), periiu (Expand Search)
petr » peter (Expand Search), petro (Expand Search), per (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: fop (petriuov OR ((((petri OR peri) OR pero) OR (petru OR (petriu OR petriiu))) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petriuov OR ((((petri OR peri) OR pero) OR (petru OR (petriu OR petriiu))) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (petriuov OR ((((petri OR peri) OR pero) OR (petru OR (petriu OR petriiu))) OR petr)) o.s.*.